Method of drilling rock



(No Model.)

I J. L. BUCKINGHAM.

METHOD OF DRILLING-ROCK, am.

No. 424,266. Patented Mar; 25, 1890.

Witmeowo .gwvawtdz N PETERS, Pnuwum mher, Wnhinglnn. n. z;

UNITED STATES PATENT OFFICE.

JOHN L. BUOKINGI-IAM, OF HERMOSA, (DAKOTA TERRITORY) SOUTH DAKOTA.

METHOD OF DRILLING ROCK, 86c.

SPECIFICATION forming part of Letters Patent No. 424,266, dated March 25, 1890..

Application filed October 5,1889. erial No. 326,114. (No model.)

To aZZ whom it may concern.-

Be it known that I, JOHN L. BUOKINGHAM, a citizen of the United States, residing at Hermosa, in the county of Custer, Territory of Dakota, have invented certain new and useful Improvements in Methods of Drilling Rocks, &c., of which the following is a specification, reference being bad therein to the accompanying drawing.

This invention relates to certain new and useful improvements in methods of drilling rocks and analogous substances.

In the ordinary manner of drilling the rock chips or cuttings out off by the drill remain at the bottom of the hole and necessarily offer resistance to the descending drill, and the drill spends part of its force upon said chips or cuttings, so that the effectiveness of the drill is materially destroyed. quently the amount of work accomplished in a given time is materially lessened.

It is the object of my invention to provide for the ready removal of the chips or cuttings, so as to leave the bottom of the hole free from any resistance or impediment to the action of the drill, whereby the whole force of the drill as it descends is expended upon the solid rock, so that a greater amount of work is accomplished in a given space of time.

I employ coal-oil petroleum, benzine, paraffine, kerosene-oil, spirits of turpentine, or other unctuous substance, supplied to the hole being drilled in any suitable manner in a sufficient quantity, In the operation of drilling the unctuous substance collects together the chips or cuttings of the rock. out oil? by the drill, and the action of the drill forces the cuttings upward. Such collected cuttings attach themselves to the sides of the drilled hole above, leaving the point of drill free from any resistance or obstruction from said cuttings and free to strike with full force on the rock at the bottom of the hole. The unctuous substance collects and holds the chippings, which water will not do.

Conse- Experience will teach. the operator the proper amount of unctuous matter required. The employment of the unctuous substance serves also to materially increase the usefulness of the drill-point, as the latter is much less liable to break and. the amount of drill ing accomplished in a given time is greatly increased.

I have shown in the accompanying drawing a side elevation illustrating the operation of my invention, wherein- A is the drill having a chisel-point a, B is the hole in the rock, and Z) the chippings adhering to the sides of the hole, leaving the bottom thereof free from chippings, so that the drill descends upon the solid rock instead of the chippin gs.

I am aware that water under pressure has heretofore been employed for removing the chippin gs, and that oil has been employed in connection with rotary tubular drills for keeping the same from becoming heated, and do not seek to cover such in this application. My improvement is designed for use in connection with reciprocating diamond or chisel pointed drills, whereby the pumping action of the drill is utilized for the forcing upward of the unctuous material and the chippings.

What I claim as new is- The herein-described improvement in the art of drilling, which consists in introducing an unctuous substance into the hole being drilled and forcing upward through the action of the reciprocating drill the said unctuous substance and adhering chippings, substantially as described. I

In testimony whereof I affix my signature in presence of two witnesses.

J OI-IN L. BUCKINGI-IAM.

Witnesses:

O. J. PATTON, I. M. DoNALnsoN. 

